trochospiral

English

Etymology

trocho- +‎ spiral

Noun

trochospiral (plural trochospirals)

1. A spiral growth pattern in foraminifers.
   • 2015 November 26, “The Impact of the Latest Danian Event on Planktic Foraminiferal Faunas at ODP Site 1210 (Shatsky Rise, Pacific Ocean)”, in PLOS ONE‎^[1], →DOI:

     They have a slight variation in trochospiral chamber arrangements with a wider umbilicus